Siemens sinumerik 840D sl Function Manual

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Detailed description2.2 Start-upSpecial functions: Cycle-Independent Path-Synchronous Signal Output (TE8)Function Manual, 11/2006, 6FC5397-2BP10-2BA0 112.2.1 Activating the technological functionThe technological function is activated via the following machine data:MD60900 $MN_CC_ACTIVE_IN_CHAN_HSLC[0], bit 0 = 1 (activation of the technology inNC channel 1)NoteThe technological function is only available in the 1st channel of the NC.2.2.2 Configuring the memoryMemory configurationThe technological function requires additional data in the NCK-internal block memory. Thefollowing memory-configuring, channel-specific machine data must be parameterized:• MD28090 $MC_MM_NUM_CC_BLOCK_ELEMENTS (number of block elements forcompile cycles (DRAM) ) = x + 1 1)• MD28100 $MC_MM_NUM_CC_BLOCK_USER_MEM (size of block memory for compilecycles (DRAM) in KB) = x + 10 1)1) See note.NoteThe specified values must be entered in addition to the existing machine data value x.2.2.3 Parameterizing the digital on-board outputsDigital outputA digital output from the local I/O is required for the switching signal. The following machinedata must be used to parameterize at least one digital output byte:MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS ≥ 1 (number of active digital output bytes)